Brass Water Solenoid Valve 2W Series

2W water solenoid valve is a solenoid-controlled industrial equipment, is used to control the fluid automation infrastructure components, functional structure is diverse, widely used in industry and manufacturing industry, this solenoid valve can realize the electric control fluid pipeline on and off.

The Difference Between Normally Closed and Normally Open Types

General daily use of solenoid valves are divided into two major types of normally closed and normally open, normally closed solenoid valve means that the coil is not energized when the gas path is broken. Normally open type solenoid valve means that the coil is not energized when the gas path is open. Normally closed solenoid valve action principle: energize the coil, the gas path is connected, once the coil is de-energized, the gas path will be disconnected, which is equivalent to the point of action. Normally open type solenoid valve action principle: energize the coil, the gas path is open, once the coil is de-energized, the gas path will be open, which is also point action.

How to Choose Based on Different Work Requirements

• When the solenoid valve needs to remain closed for extended periods and the closed duration exceeds the open duration, a normally closed type should be selected.
• When the solenoid valve needs to remain open for extended periods and the open duration exceeds the closed duration, a normally open type should be selected.
• When requiring prolonged activation alongside extended deactivation periods, select a self-holding solenoid valve, also known as a normally open or normally closed solenoid valve.
• However, for certain safety-critical applications, such as furnace or kiln flame detection, normally open contacts should not be selected; instead, contacts capable of sustained energization should be chosen.

Installation Instructions

• The solenoid valve pipe diameter shall be maintained in a horizontal installation, with the coil installed vertically.
• Outlet piping with backflow requires a check valve.
• The medium must be clean and non-corrosive (suitable for water or compressed air).

Product Parameters

Product Size Reference